Grain-door.



M. s. GREELEY.

GRAIN DOOR. APPLIOATION FILED AUG. 7, 1911.

Patented Jan. 251912.}

2 SHEETS-SHEEP 1 M. s. GREELEY. GRAIN DOOR. APPLICATION FILED AUG.$1911.

1,01 3,766, Patented Jan. 2, 1912.

2 SHEETS-SHEET 2.

* T 0 all whom i: may concern."

MELVIN S. GREELEY, 0F DES MOINES, ICWA.

GRAIN-DOOR.

Specification of Letters Patent.

. Patented Jan. 2,191

Application filed August 7, 1911. Serial No. 642,616.

Be it known that I, MnLYiN S. GREELEY, a citizen of the United States,residing at Des Moines, in the county of Polk and State of Iowa, haveinvented a new and useful Grain-Door, of which the following is aspecification.

This invention relates to grain doors, and particularly to graindoorsadapted for use 011 box cars.

The object of this invention is to produce a door of this characterwhich can be conveniently and readily arranged in operative position orremoved therefrom.

This invention embodies a novel construction, combination andarrangement of parts, and is embodied principally in a plurality of doorsections arranged to-set one on the other in the doorway and be removedtherefrom to slide along the side of the wall when brought to a raisedposition, as will be evident from the hereinafter description.

This invention is illustrated in the accom- .panying drawings, in whichsimilar reference characters indicate smnlar parts, and

in which Figure 1 is an exterior elevation of a side wall of a carembodying the invention. Fig. 2 is an interior elevation thereof Fig". 3is a vertical section taken through the doorway, being on an enlargedscale. Fig. 4 is a horizontal section in detail taken through one sideof the door frame, with parts broken away.

Referring specifically to the drawings, 6 designates the side wall of abox car or the like having the usual doorway 7. A sliding door 8 ismounted on the dove-tail shaped tracks 9 at the top and bottom of thewall 6 to slide over the doorway and away therefrom. The tracks 9 arepreferably spaced slightly from the sides of the car to prevent sleetand snow from collecting thereon, and the door 8 is provided with alatch 10 for locking same when closed. -This sliding door 8 forms anouter door for a doorway which is used in connection with the inner orgrain door, as will be hereinafter de scribed. l

The doorposts 26 on each side of thedoorway each has an inner rabbet 25and to these posts 26 are secured the innerj'linings 11 at the sides ofthe doorway, which linings extend from the floor upwardto a positionbelow the top of the doorway. The strips 12 are secured to the edges ofthe linings 11 and project beyond the edges thereof to form a channel 30between each of the strips 12 and the corresponding rabbet of the doorpost at each side of the doorway. The upper ends of the strips 12 aredeflected inwardly or ofi'set as indicated at 12, the upper ext-remitiesbeing secured to the wall of'the car above the doorway. A. track 18 isse-' cured to the inner side of the wall 6 at each side of the doorwayabove the linings 111, each of the said tracks comprising a channel ofdovetailed shape. These tracks 1% are preferably declined slightly fronrthe doorway and the inner extremities thereof pass in under the portions12 of the strips 12 to the edges of the doorway. At the top of thedoorway and on the inner side thereof are secured a pair of angularmembers 16 having one of the flanges thereof spaced inwardly from theside wall of the car and projecting upward to form a track. The innerextremities of the said members are spaced apart and the outerextremities thereof extend in under the deflected portions 12 of theguide strips 12. I

Thegrain door sections are designated at 13, eachhaving a hooked member14 secured centrally of the upper end thereof, a dovetailed rib 21extending horizontally across the front side thereof, and a lip 15secured to the lower edge thereof on the inner face. These door sections13 are arranged to set one on the other in thedoorway with theextremities thereof extending into the'channel formed between therabbets 25 of the door posts 2d and the guide strips 12. "The lips 15 ofthe upper sections overlap the upper edges of the lower sections toclose the crevice between the sections, and the lip 15 of the lowersection overlaps the foot board at the bottom of thedoorway.,

The upper sections are also provided with recesses 24: on the lower edgethereof into which the'hooks 14 of the lower sections project when thesections are upon each other. The lowermost section of the grain door isprovided with a small door 19 hinged thereto to swing outwardly andbei'ng adapted to be locked against being opened by the latch QO'mountedon the said section and the member 22 carriedby the said door 19. Thisdoor 19 being-on the lower section can readily be opened when desired tolet the grain escape from the car therethrough.

.In use, the door sections 13 are removed from the doorway by raisingsame to the -top of the doorway which permits the hooks enter thechannel tracks 18 allowing the sections to be slid along the inner wallof the car. It will be noted that upon being slid to either side, thehooks 14 and the ribs 21 simultaneously engage the respective tracks 16and 18 which prevent the said sections from being removed from the car,the hooks 1 1 engaging the tracks 16 guide the door sections until theyare safely held in position by the tracks 18. To bring the doorsect-ions in operative position the same are moved toward the doorway,the hooks lthereof sliding over the tracks 16 until the said hooks comebetween the inner ends of the tracks 16 when the door section can belowered into the doorway between the guideways and the sides thereof. Inthis manner the respective door sections can be readily brought inoperative position in the doorway and be removed therefrom. \Vhen thegrain door sections are in operative position and after the car has beenfilled with grain, the outer door 8 is closed which forms an additionalclosure for the doorway. The tracks 18 being declined from the doorwayprevents the door sections from sliding therefrom due to the joltingaction to which the car is susceptible and retains the door sectionsthereon until manually slid therefrom to be brought in position in thedoor- Way.

It will be understood that this grain door can be built from lumber,sheet steel or other material and that the same is susceptible ofalteration in its details within the scope of the appended claimswithout departing from the spirit of the invention.

What is claimed is:

1. The combination with a wall having a doorway therein and guide-Waysat the sides of the door-way, of a track secured to the side wallat-each side of the doorway, apair of tracks secured at the top of thedoor-way having their inner extremities spaced from each other, aplurality of door sections adapted to set one on the other in the saiddoorway between the guide-ways, a hook secured to each door sectionadapted to pass between the extremities of the tracks at the top of thedoor-way and engage the said tracks upon the door sections being slid toone side, and a track engaging member carried by each door section andadapted to engage the tracks at the sides of the doorway upon the doorsections being slid sidewardly.

2. The combination with a wall having a doorway therein, and guidestrips secured at the sides of the doorway having upper deflectedportions, of a pair of tracks secured to the said wall at each side ofthe doorway having their inner extremities arranged within the saiddeflected portions of the guide strips, a pair of tracks secured at thetop of the doorway having their inner extremities spaced troni eachother and having their outer extremities nojecting in under the saiddeflected portions of the strips, a plurality of door-sections adaptedto setone on the other in the said door fay between the guideways, ahook secured to each door section adapted to pass between theextremities of the tracks at the top of the doorway and engage the saidtracks upon the door section being slid to one side, and a trackengaging member carried by each door sect-ion adapted to engage thetracks at the sides of the doorway upon the door section being slidsidewardly, for the purpose described.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

MELVIY S. GREELEY.

Witnesses L. A. SMYSER, HOMER R. MiLLnn.

